Improvement in machines for forming sled-runners



S. GILZINGER. MACHINES FOR FORMING SLED-RUNNERS.

No. 195,813 Patented 0ct.Z,l87T,

MPEIERS, Pl-la mumosmmw waswmimw J c UNITED STATES T FICE.

SEBASTIAN GILZINGER, OF RONDOUT, NEW YORK, ASSIGNOR OF ONE-HALF HISRIGHT TO ABEL A. CROSBY, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR FORMING SLED-RUNNERS.

Specification forming part of Letters Patent No. 195,813, dated October2, 1877; application filed January 26, 1877.

To all whom it may concern:

Be it known that I, SEBASTIAN GILZINGER, of Rondout, in the county ofUlster and State of New York, have invented a new and useful Machine forForming Sled-Runners, &c.; and that the following is a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, making'part ofthis specification.

This invention relates to a machine for manufacturing sled irons orrunners for sleds, together with their braces, from iron; and theinvention consists of a machine for making sled-runners from a piece ofmetal or blank, consisting of a bed-plate with sides of a given shape atright angles thereto; an adjustable clamping device resting on thebed-plate, constructed to operate as a clamp to confine the rod or blankfrom which the sled-runners are to be made to the inner sides of thebed-plate; and a former consisting of two side pieces which are of theexact size and form it is desired the runners shall be, said formerbeing hinged at the rear of the bedplate, so as to shut into or betweenthe sides of the bed-plate and the clamping device before described, theformer having secured to its rear end a movable bending-plate, whichcombines With the first-mentioned or main former to give the necessarycurve or angle to the rear posts of the runners, which last-mentionedbending-plate, as well as the main former before named, is operated by alever, and the front of the sides of the bed-plate being constructedwith a lever and roller, or similar devices, with which the front curvesof the run ners are made-by bending the blank with the roller, and byaid of the lever, over the front ends of the hinged former.

In the accompanying sheet of drawings, Figure l is a side elevation ofmy machine, partly in section, showing the hinged former thrown back forthe introduction of the blank; Fig. 2, a plan or top view of same,showing blank inserted therein; Fig. 3, a side elevation, showing theformer closed into the sides of the bed-plate, and the roller and leverthrown back; Fig. 4, a plan view of the blank; and

Fig. 5, a perspective view of the sled-runners and braces complete.

Similar letters of reference indicate like parts in the several figures.

As stated above, this invention applies more particularly to themanufacture of sled-runners and braces made entire and complete from apiece of metal. That such sled runners may be perfectly made, and atsmall cost, I construct a machine with a bed-plate, A, properlysupported on frame-work B, to which it is firmly secured. This bed-plateis made from cast-iron or other suitable material, and is provided withsides a a, cast with or otherwise secured to it. These sides may have aform that shall generally resemble the outline of the sled-runners it isdesigned to make, or they may be of any other desirable or suitableform. Within the bed-plate A is fitted a clamping device, 0, whichconsists of two angle-irons, I) I). These angleirons, or that part ofthem which forms their sides f, are made to conform, in some degree, tothe general shape of the sled-runner, so far as the curved front portionof the runners is concerned. The front ends of these angle-irons,forming the clamping device, extend to the front end of the bed-plate,to which they are secured by a pivotal bolt, 0, and at or near the rearends of the angle-irons of the clamping device are afiixed two levers,d, which Is vers have their inner ends in turn affixed to one end of aconnecting-rod, f, forming a toggle. The other end of the connecting-rodf is connected by a pivotal bolt, 9, to a lever, h, which passes upthrough the bed-plate A, and thence is bent at right angles, or nearlyat right angles, below the supporting-frame B, terminating in a curvedhandle, 1', forming an operating-lever.

Secined to the rear end of the bed-plate A, by a suitable hinge joint orjoints, is a former, D. This former consists of two sides, j j, whichare in size and form exactly that of the runners it is designed toconstruct on the machinethat is, their front ends are curved to theexact curve that the runners are to have, and their rear ends are ownedor angular to the exact curve or angle that the rear brace of 1e rlnmersare to have. Their width correionds to the distance between the runnersroper and the uppertransverse braces of the led, and their thicknessapproximates to the iamcter or size of the iron from which theled-runners are to be constructed, and they re so fitted together thattheir upper edges hall incline slightly toward each other at an nglcthat represents the flare or spread of the unners, so that it will beseen this former is ubstantially in form and proportion a counerpart ofthe sled runners and braces. The ides j j are connected together ontheir upper urfaces by transverse plates I: and I. To the earmost one ofthese plates 1 a slideway, l], s secured, into which is titted a slidingblock, '1, and to the rear end of this sliding block is ,ttached abending-plate, F. This bendingilate F has its inner surtace curved ormade ulgular, its angle or curve corres mudin g with he angle or curve nat the rear end of the sides j. To the front or other end of the sliding)lock m, or rather to that portion of a pin, 0, )f the block, whichprojects above the surface if the slideway E, is secured one end of alink, ),'the other end of the link being secured to at ever, G, one endof this lever being bent at right angles and attached to the reartransverse plate I, and then, passing through a guiding-arc, 1',attached to the front transverse plate It", it is again bent at ornearly at right angles, and extends well over the entire machine,forming a convenient grasping-handle, as at s.

In secin'ing this former I) to the bed-plate one of its sides may bebolted to the rear of the bed-plate, and its other side bolted to aC-shaped plate, L, as shown in Fig. 3. At or near the front ends of thesides a a of the bedplate are secined, by pivotal bolts or otherwise,the arms of a double lever, H, the outer ends of these arms beingconnected by a crossbrace, t, so that the lever forms, in fact, a largelink, as shown in Fig. 2; and between the arms of this lever, and nearlyin contact with the curved front ends of the sides a a of the bedplateand the curved front ends of the an gleirons I) b of the clamping deviceC, is fitted a roller, I. This roller is fitted between the arms of thelever, so as to turn freely onjournals, and it has recesses u it turnedinto its surface and near its ends. To the rear of the frame-worksupporting the bed-plate, and well at the rear of the bed-plate itself,is secured a catch, r, supported on a standard, 10, and to the aforesaidframe-work, and at the front of the bedplate, are secured stops g, onwhich the lever H may rest when in the position shown in Fig. 2.

To the foundation (1, or to some other convenient and suitable support,is aflixed a clamp, J.

Now, my machine being constructed substantially as I have described, itis operated by first forming a blank, K, as shown in Fig. 4. This blankis made from iron or steel, or any other suitable metal, of theformshown inF i g. 4,

and its ends mayormay not be Weldedtogether. This blank, having beenpreviously heated to a red heat, is inserted onto the bed-plate A, withits end b passing beyond the point at which the former l) is hinged, orattached to the rear end of the bed-plate and over the inner curvedsurface of the bending-plate F, the sides 0 of the blank lying into thespace formed between the vertical sides f of the angleirons b I),forming the. clamping device 0 and the sides a a of the bed-plate, thefront end (1 of the blank K protruding beyond the front end of thebed-plate, as shown in Fig. 2, and over and into the recesses u u of theroller I, which, with the lever H, is in the position shown in Fig. l,and resting on the stops 3 The end of the lever 11 is then depressed,which, by the operation of the connecting-rod f and levers (I, forming atoggle, expands or throws outward the vertical sides of the angle-ironsb I), tightly clamping the sides of the blank K between the angle-ironsand the sides a a of the bedplate. The lever (l is next pressed by thehand upward, which forces the rear end of the blank tightly between theinner curycd surface of the bending-plate F and the curved or angularrear ends it of the side pieces j j of the former I), thus forming therear braces c c of the sled-runners, the catch '0 keeping the former Drigidly in position for this purpose. The pressure still beingmaintained on the lever (l, the former is disconnected from the catch0', and it (the former D) is turned down into the bed-plate A, thevertical sides j j of the former passing between the vertical sides f ofthe angle-irons b b of the clamping device (J and the sides a a of thebed-plate A, pressure still being maintained on the lever G by means ofthe clamp J, which is hooked over the end of said lever, as shown inFig. 3. The double lever H is next raised upward and backward, forcingthe protruding end d of the blank K around the curved front ends of thesides j of the former, making the blank confornl exactly, as at g g, tothe curvature of these ends, and also making the proper curve at thepoint of attachment of the front brace L with the upper ends of therunners. This front brace and the rear brace M are formed by the ends dand 1), respectively, of the blank K.

The blank having now received its proper form, the clamping device 0 isreleased from the runners, the clamp J from the end of the lever 11, theformer I) is tuned back to the position shown in Fig. 1, the sledrunners and braces, now fully formed, adhering to and surrounding thesidcs of the former D, whelrthe runners are slipped 011' from the sidesof the former, (the Cshaped connection or plate permitting this,) andthe runners and braces are complete, as shown in Fig. 5, and ready forthe top board. The runners receive the proper flare or spread from theflare or spread of the side pieces of the former, which are made toflare for that purpose, as before stated.

It is obvious that some slight modifications in the general constructionor in the details of the machine above described may be made withoutmaterially changing the spirit or chief points of my invention, which Iclaim as follows:

1. A machine for forming sled runners and braces of metal, consisting ofa bed-plate with vertical sides, and provided with a clamping devicecomposed of two legs, secured by a pivotal bolt which unites their frontends together, and resting on the bottom of the bedplate, and operatedby a lever passing beneath the bed-plate, and extending to the front ofthe same, combined with a former consisting of two parallel sides of theexact dimensions and shape of the runners and braces of the sled to beformed, the rear end of the former being hinged to the rear of thebed-plate, and having secured at its rear end a movable bending-plate,substantially as and for the purpose described.

2. In a machine for forming sled runners and braces of metal, a formerof the exact size and shape of the runners and braces to be formed,combined with a movable bendingplate hinged to the rear ends of thesides of the former, and provided with a sliding plate andoperatinglever, the inner face of said bending-plate being of the samecurve or angle as are the rear ends of the sides of the former,substantially as and for the purpose described.

3. In a machine for forming sled runners and braces of metal, a formerwith two sides of the shape and dimensions of the sled runners andbraces to be bent thereon, combined with a bending-plate hinged to therear ends of the sides of the former, the bending-plate extending acrossfrom one of the sides of the former to the other, and accurately fittingthe curve or angle of the ends thereof, substantially as and for thepurpose described.

4. In a machine for forming sled runners and braces of metal, a clampingdevice secured to a bed-plate with vertical sides, and consisting of twolegs with vertical sides united at one end by a pivotal bolt and at theother end by two levers and a connecting-rod, sub stantially as and forthe purpose described.

5. The curved plate L at the rear of the bed-plate, for giving a hingedsupport to one of the two former-plates, as shown and described.

SEBASTIAN GILZINGER.

Witnesses:

H. L. WATTENBERG, GEo. M. PLYMPTON.

